<template>
	<div :id="id" :class="className" :style="{ height: height, width: width }" />
</template>

<script>
import * as echarts from "echarts";
export default {
	name: "echart",
	props: {
		className: {
			type: String,
			default: "chart",
		},
		id: {
			type: String,
			default: "chart",
		},
		width: {
			type: String,
			default: "100%",
		},
		height: {
			type: String,
			default: "100%",
		},
		options: {
			type: Object,
			default: () => ({}),
		},
	},
	data() {
		return {
			chart: null,
		};
	},
	watch: {
		options: {
			handler(options) {
				// 设置true清空echart缓存
				this.chart.setOption(options, true);
			},
			deep: true,
		},
	},
	mounted() {
		this.initChart();
	},
	beforeDestroy() {
		this.chart.dispose();
		this.chart = null;
	},
	methods: {
		initChart() {
			// 初始化echart
			this.chart = echarts.init(this.$el);
			this.chart.setOption(this.options, true);

			// window.addEventListener('resize',()=>{
			//   this.chart.resize()
			// })
		},
		resize() {
			echarts.init(this.$el).resize();
		},
	},
};
</script>

<style></style>
